IR-absorbing compositions

US7074351B2 · kind B2 · utility

Assignee

• Leibniz-Institut fur Neue Materialien gem. GmbH · DE

Inventors

• Martin Döbler · Düsseldorf, DE
• Werner Hoheisel
• Helmut Schmidt · Riegelsberg, DE
• Ralph Nonninger · Saarburg, DE
• Martin Schichtel · Riegelsberg, DE
• Martin Jost · Beverungen, DE

Key dates

• Filing date: Apr 23, 2001
• Grant date: Jul 11, 2006
• Expiry date: Jun 1, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention provides compositions containing transparent thermoplastic polymer, surface-modified oxide particles with a particle size of less than 200 nm, and organic NIR absorbers. The compositions of the present invention may find use in reducing diathermancy in sheets, films, glazing systems and roofing systems which may be incorporated into automobiles and buildings.